serveTestMetadata

pub fn serveTestMetadata(s: *Server, test_metadata: TestMetadata) !void {
    const header: OutMessage.TestMetadata = .{
        .tests_len = @intCast(test_metadata.names.len),
        .string_bytes_len = @intCast(test_metadata.string_bytes.len),
    };
    const trailing = 2;
    const bytes_len = @sizeOf(OutMessage.TestMetadata) +
        trailing * @sizeOf(u32) * test_metadata.names.len + test_metadata.string_bytes.len;

    try s.serveMessageHeader(.{
        .tag = .test_metadata,
        .bytes_len = @intCast(bytes_len),
    });
    try s.out.writeStruct(header, .little);
    try s.out.writeSliceEndian(u32, test_metadata.names, .little);
    try s.out.writeSliceEndian(u32, test_metadata.expected_panic_msgs, .little);
    try s.out.writeAll(test_metadata.string_bytes);
    try s.out.flush();
}